[oracle]逗号(或分号等)间隔的列,按这一列劈分后转多行

     今天遇到个需求,要匹配两个表, 但是关联的字段,在另一个表中是放在一个字段中用分号分割的

怎么全部匹配呢?

后来在网上搜到了, 记录下



SELECT cp.ES_EXTNUMBER,

       cp.ES_AGENTID,

       cp.ES_CHSTATESTR,

       (sysdate-cp.ES_STARTDATETIME)*24*3600 es_times,

       REGEXP_SUBSTR(CP.ES_GROUP, '[^;]+', 1, L) AS ES_GROUP

       ,L

FROM aladdinpbx_extstate CP,

     (SELECT LEVEL L FROM DUAL CONNECT BY LEVEL <= 10)

WHERE L(+) <= LENGTH(CP.ES_GROUP) - LENGTH(REPLACE(CP.ES_GROUP, ';')) + 1

order by ES_EXTNUMBER



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